Pub Date : 2018-09-14DOI: 10.19080/BBOAJ.2018.08.555730
Y. T. Kouakep
Inspired by a manuscript of (kouakep, arxiv.org/abs/1505.06431, 2016), we considered in this note a wellposed model with deferential susceptibility and infectivity adding continuous age structure to an ODE model for a “Baka” pygmy group in the East of Cameroon (Africa). Assuming a very low contribution of carriers to infection compare to acute infectious, we estimate a probability p(a) (to develop symptomatic Hepatitis B state at age a) and acute carriers’ transmission rate. The value R0 = 2:67 >1 of the basic reproduction number estimated from data in the east of Cameroon confirms that HBV is endemic in the Baka pygmy group.
{"title":"Estimation of parameters in a closed pygmy population in Cameroon","authors":"Y. T. Kouakep","doi":"10.19080/BBOAJ.2018.08.555730","DOIUrl":"https://doi.org/10.19080/BBOAJ.2018.08.555730","url":null,"abstract":"Inspired by a manuscript of (kouakep, arxiv.org/abs/1505.06431, 2016), we considered in this note a wellposed model with deferential susceptibility and infectivity adding continuous age structure to an ODE model for a “Baka” pygmy group in the East of Cameroon (Africa). Assuming a very low contribution of carriers to infection compare to acute infectious, we estimate a probability p(a) (to develop symptomatic Hepatitis B state at age a) and acute carriers’ transmission rate. The value R0 = 2:67 >1 of the basic reproduction number estimated from data in the east of Cameroon confirms that HBV is endemic in the Baka pygmy group.","PeriodicalId":72412,"journal":{"name":"Biostatistics and biometrics open access journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41574709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-09-14DOI: 10.19080/BBOAJ.2018.08.555732
Kshitij Shinghal
{"title":"A New Era of Biometrics Applications","authors":"Kshitij Shinghal","doi":"10.19080/BBOAJ.2018.08.555732","DOIUrl":"https://doi.org/10.19080/BBOAJ.2018.08.555732","url":null,"abstract":"","PeriodicalId":72412,"journal":{"name":"Biostatistics and biometrics open access journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46182774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-14DOI: 10.19080/BBOAJ.2018.08.555729
Abouelmagd Thm
The so called zero truncated Poisson (ZTP) distribution is a discrete probability model whose support is the set of only the positive integers ( ) + I . The ZTP is also known as the positive Poisson distribution or the conditional Poisson distribution. It is the conditional probability distribution of a Poisson-distributed random variable (RV), given that the value of the RV is 0. ≠ Thus, it is impossible for a ZTP RV to be zero, in this paper we will introduce a new flexible model based on the ZTP distribution for modeling lifetime data.
{"title":"A New Flexible Distribution Based on the Zero Truncated Poisson Distribution: Mathematical Properties and Applications to Lifetime Data","authors":"Abouelmagd Thm","doi":"10.19080/BBOAJ.2018.08.555729","DOIUrl":"https://doi.org/10.19080/BBOAJ.2018.08.555729","url":null,"abstract":"The so called zero truncated Poisson (ZTP) distribution is a discrete probability model whose support is the set of only the positive integers ( ) + I . The ZTP is also known as the positive Poisson distribution or the conditional Poisson distribution. It is the conditional probability distribution of a Poisson-distributed random variable (RV), given that the value of the RV is 0. ≠ Thus, it is impossible for a ZTP RV to be zero, in this paper we will introduce a new flexible model based on the ZTP distribution for modeling lifetime data.","PeriodicalId":72412,"journal":{"name":"Biostatistics and biometrics open access journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46665446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-01DOI: 10.19080/bboaj.2018.08.555728
D. Jeske
{"title":"Metrics Used When Evaluating the Performance of Statistical Classifiers","authors":"D. Jeske","doi":"10.19080/bboaj.2018.08.555728","DOIUrl":"https://doi.org/10.19080/bboaj.2018.08.555728","url":null,"abstract":"","PeriodicalId":72412,"journal":{"name":"Biostatistics and biometrics open access journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44392825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-30DOI: 10.19080/bboaj.2018.07.555726
W. O
{"title":"An Illustration of Obtaining p-values and Confidence Intervals Through the Use of The Significance Function","authors":"W. O","doi":"10.19080/bboaj.2018.07.555726","DOIUrl":"https://doi.org/10.19080/bboaj.2018.07.555726","url":null,"abstract":"","PeriodicalId":72412,"journal":{"name":"Biostatistics and biometrics open access journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47637248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-30DOI: 10.19080/bboaj.2018.08.555727
R. Banchuin
The stochastic fractional differential equation (SFDE) has been often cited in various disciplines e.g. turbulence, heterogeneous flows and materials etc. [1]. Unfortunately, solving the SFDE can be a rather complicated task. Therefore, a novel methodology for solving the SFDE has been proposed in this work. The proposed methodology is to firstly convert the SFDE to its equivalent vector stochastic differential equation (SDE) and solving the obtained equivalent SDE in a usual manner. Comparing to the previous ones [1-3], our methodology has been found to be much simpler. Moreover, it is also applicable to the SFDE of both linear and nonlinear type.
{"title":"A Novel Simplified Methodology for Solving the Stochastic Fractional Differential Equation","authors":"R. Banchuin","doi":"10.19080/bboaj.2018.08.555727","DOIUrl":"https://doi.org/10.19080/bboaj.2018.08.555727","url":null,"abstract":"The stochastic fractional differential equation (SFDE) has been often cited in various disciplines e.g. turbulence, heterogeneous flows and materials etc. [1]. Unfortunately, solving the SFDE can be a rather complicated task. Therefore, a novel methodology for solving the SFDE has been proposed in this work. The proposed methodology is to firstly convert the SFDE to its equivalent vector stochastic differential equation (SDE) and solving the obtained equivalent SDE in a usual manner. Comparing to the previous ones [1-3], our methodology has been found to be much simpler. Moreover, it is also applicable to the SFDE of both linear and nonlinear type.","PeriodicalId":72412,"journal":{"name":"Biostatistics and biometrics open access journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47083067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-18DOI: 10.19080/bboaj.2018.07.555725
A. M
{"title":"Longitudinal Data Analysis Using Liu Regression","authors":"A. M","doi":"10.19080/bboaj.2018.07.555725","DOIUrl":"https://doi.org/10.19080/bboaj.2018.07.555725","url":null,"abstract":"","PeriodicalId":72412,"journal":{"name":"Biostatistics and biometrics open access journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68371608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-17DOI: 10.19080/bboaj.2018.07.555724
R. Shanmugam
Of course, advantages as much as risks exist in the practice of medical tourism. Patients in an originating continent chose to visit medical facility in a destination continent for a treatment and this process is recognized as medical tourism. In 21st century, medical advancements have become reality in several continents due to the globalization. Some de facto in the medical tourism are affordable cost and/or advanced medical facility. A lack of authentic pertinent information associated with such facto cripples its usage in the discussion of popularity of a specific continent for medical tourists. How should an analyst proceed to capture and illustrate the attractiveness (or rather importunity) of a destination continent among the alluring patients in an originating continent? This question is the research theme of this article. For discussions in this article, Africa (AF), Asia (AS), Europe (EU), Latin America (LA), Middle East (ME), North America (NA), and Oceania (OC) are considered.
{"title":"Bridging Allure with Importunity of Medical Tourism","authors":"R. Shanmugam","doi":"10.19080/bboaj.2018.07.555724","DOIUrl":"https://doi.org/10.19080/bboaj.2018.07.555724","url":null,"abstract":"Of course, advantages as much as risks exist in the practice of medical tourism. Patients in an originating continent chose to visit medical facility in a destination continent for a treatment and this process is recognized as medical tourism. In 21st century, medical advancements have become reality in several continents due to the globalization. Some de facto in the medical tourism are affordable cost and/or advanced medical facility. A lack of authentic pertinent information associated with such facto cripples its usage in the discussion of popularity of a specific continent for medical tourists. How should an analyst proceed to capture and illustrate the attractiveness (or rather importunity) of a destination continent among the alluring patients in an originating continent? This question is the research theme of this article. For discussions in this article, Africa (AF), Asia (AS), Europe (EU), Latin America (LA), Middle East (ME), North America (NA), and Oceania (OC) are considered.","PeriodicalId":72412,"journal":{"name":"Biostatistics and biometrics open access journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46309847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-10DOI: 10.19080/BBOAJ.2018.07.555721
Tarik Bourezgue
The rapid changes in Algeria have had and continue to have a profound impact on infrastructure, economic agents and the population as a whole. These transformations have already turned the statistical landscape upside down and will continue to do so. In fact, the need for statistical data has changed and evolved in terms of the nature of the statistics, on one hand, and requirements regarding availability, quality and time, on the other hand. Starting from the context described above, the development of ONS-Algeria’s quality approach is essentially based on the capitalization of the work of cooperation with Eurostat on the principles of the European Quality Assurance Framework for Official Statistics (QAF), the option for a participatory and transparent process to enrich this approach and facilitate its appropriation and lastly, conducting the process in stages. In driving the process step by step, to optimize its management, our paper will address the issues related to the design of a roadmap for implementing the Code of Practice (CoP) for the ENP south countries.
{"title":"Design of A Roadmap for Implementing A Quality Approach At ONS-Algeria","authors":"Tarik Bourezgue","doi":"10.19080/BBOAJ.2018.07.555721","DOIUrl":"https://doi.org/10.19080/BBOAJ.2018.07.555721","url":null,"abstract":"The rapid changes in Algeria have had and continue to have a profound impact on infrastructure, economic agents and the population as a whole. These transformations have already turned the statistical landscape upside down and will continue to do so. In fact, the need for statistical data has changed and evolved in terms of the nature of the statistics, on one hand, and requirements regarding availability, quality and time, on the other hand. Starting from the context described above, the development of ONS-Algeria’s quality approach is essentially based on the capitalization of the work of cooperation with Eurostat on the principles of the European Quality Assurance Framework for Official Statistics (QAF), the option for a participatory and transparent process to enrich this approach and facilitate its appropriation and lastly, conducting the process in stages. In driving the process step by step, to optimize its management, our paper will address the issues related to the design of a roadmap for implementing the Code of Practice (CoP) for the ENP south countries.","PeriodicalId":72412,"journal":{"name":"Biostatistics and biometrics open access journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44956397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-09DOI: 10.19080/BBOAJ.2018.07.555717
Anshula Pandey
Triallel crosses form an important class of mating designs, which are used for studying the genetic properties of a set of inbred lines in plant breeding experiments. For p inbred lines, the number of different crosses for a complete triallel experiment is ( )( ) 3 3 1 2 2 p C p p p = − − of the type ( ) , i j k × 0,1, 2, , 1. i j k p ≠ ≠ = ... − Rawlings & Cockerham [5] were the first to introduce mating designs for triallel crosses. Triallel cross experiments are generally conducted using a completely randomized design (CRD) or a randomized complete block (RCB) design as environmental design involving 3 3 C crosses. Even with a moderate number of parents, say 10, p = in a triallel cross experiment; the number of crosses becomes unmanageable to be accommodated in homogeneous blocks. For such situations, Hinkelmann [6] developed partial triallel crosses (PTC) involving only a sample of all possible crosses by establishing a correspondence between PTC and generalized partially balanced incomplete block designs (GPBIBD). Ponnuswamy & Srinivasan [7] and Subbrayan [8] obtained PTC using a class of balanced incomplete block (BIB) designs. Dharmlingum [9] also constructed PTC using Trojan squares. Actually Trojan squares are MOLS. Other research workers who contributed in this area are Arora & Aggarwal [10,11], Ceranka et al. [12]. More details on triallel cross experiments can be found in Hinkelmann [13] and Narain [14]. Das & Gupta [4] constructed block designs for triallel crosses by using nested balanced block design with parameters
三等位杂交是一类重要的交配设计，在植物育种实验中用于研究一组自交系的遗传特性。对于p个自交系，一个完整的三等位试验的不同组合的数量为（）（）3 3 1 2 p C p p=−−−类型（），i j k×0，1，2，1。i j k p≠≠=…−Rawlings和Cockerham[5]是第一个引入三轴杂交交配设计的人。三等位杂交实验通常使用完全随机设计（CRD）或随机完全区组（RCB）设计作为涉及3个3C杂交的环境设计来进行。即使是中等数量的父母，比如说10个，在三元交叉实验中p=；交叉的数量变得难以管理，无法容纳在同质块中。对于这种情况，Hinkelmann[6]通过建立PTC和广义部分平衡不完全块设计（GPBIBD）之间的对应关系，开发了仅涉及所有可能交叉的样本的部分三元交叉（PTC）。Ponnuswamy和Srinivasan[7]和Subbrayan[8]使用一类平衡不完全块（BIB）设计获得PTC。Dharmlingum[9]还使用特洛伊木马构建了PTC。实际上特洛伊方块是MOLS。在这一领域做出贡献的其他研究工作者有Arora和Aggarwal[10，11]，Ceranka等人[12]。关于三元交叉实验的更多细节可以在Hinkelmann[13]和Narain[14]中找到。Das&Gupta[4]通过使用带参数的嵌套平衡块设计构建了三线交叉的块设计
{"title":"A Note on Optimal Partial Triallel Cross Designs","authors":"Anshula Pandey","doi":"10.19080/BBOAJ.2018.07.555717","DOIUrl":"https://doi.org/10.19080/BBOAJ.2018.07.555717","url":null,"abstract":"Triallel crosses form an important class of mating designs, which are used for studying the genetic properties of a set of inbred lines in plant breeding experiments. For p inbred lines, the number of different crosses for a complete triallel experiment is ( )( ) 3 3 1 2 2 p C p p p = − − of the type ( ) , i j k × 0,1, 2, , 1. i j k p ≠ ≠ = ... − Rawlings & Cockerham [5] were the first to introduce mating designs for triallel crosses. Triallel cross experiments are generally conducted using a completely randomized design (CRD) or a randomized complete block (RCB) design as environmental design involving 3 3 C crosses. Even with a moderate number of parents, say 10, p = in a triallel cross experiment; the number of crosses becomes unmanageable to be accommodated in homogeneous blocks. For such situations, Hinkelmann [6] developed partial triallel crosses (PTC) involving only a sample of all possible crosses by establishing a correspondence between PTC and generalized partially balanced incomplete block designs (GPBIBD). Ponnuswamy & Srinivasan [7] and Subbrayan [8] obtained PTC using a class of balanced incomplete block (BIB) designs. Dharmlingum [9] also constructed PTC using Trojan squares. Actually Trojan squares are MOLS. Other research workers who contributed in this area are Arora & Aggarwal [10,11], Ceranka et al. [12]. More details on triallel cross experiments can be found in Hinkelmann [13] and Narain [14]. Das & Gupta [4] constructed block designs for triallel crosses by using nested balanced block design with parameters","PeriodicalId":72412,"journal":{"name":"Biostatistics and biometrics open access journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47111534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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